The Idaho Invasive Species Council is a multi-agency organization that provides direction and planning for combating invasive species throughout the state and for preventing the introduction of other species that may be potentially harmful. The Director of the Idaho State Department of Agriculture (ISDA) chairs the Idaho Invasive Species Council.

The membership of the Council reflects the existing partnerships among federal, state and local governments plus private entities that have long been working to prevent and control unwanted invasive species.

The Council is chaired by the Director of the Idaho State Department of Agriculture. Its core members include representatives from the Executive Office of the Governor and the directors of these State entities:

Department of Agriculture
Department of Environmental Quality
Department of Parks and Recreation
Department of Fish and Game
Department of Lands
Department of Water Resources
Department of Commerce & Labor
Idaho Transportation Department
The Office of Species Conservation
A member of the Idaho Senate
A member of the Idaho House of Representatives
A representative from the Idaho Outfitters and Guides Association

Membership also includes various federal entities, tribal governments, Idaho universities, and private and not-for-profit organizations with an interest in the well-being of Idaho pertaining to invasive species.

Executive Order NO 2017-05 for Continuing the Idaho Invasive Species Council

Council updates

+ October 17, 2018

Re: Idaho Invasive Species Program Update & Save the Date IISC Fall Meeting December 12th, 2018

Idaho Invasive Species Council Meeting Save the Date- December 12th, 2018: The fall 2018 council meeting date is tentatively scheduled for Wednesday December 12th, 2018 here at ISDA in lower 1 & 2. ISDA staff will update the council on 2018 activities and a high level planning update for 2019 operations covering both invasive species and noxious weed program. Stay tuned for a draft agenda.

FY 2019 Funding:

The Idaho legislature provided $3,143,300 from the Idaho General Fund to continue enhanced operations of the state's watercraft inspection stations for FY19. This funding made it possible to open new inspection stations, extend season duration, increase hours of operation and law enforcement. FY19 funding also includes $1,000,000 from federal funds through a Pacific States Marine Fisheries (PSMFC) Water Resources Development Act (WRDA) agreement to expand watercraft inspection operations. PSMFC WRDA funding also includes monitoring efforts as well, which has allowed ISDA to expand the level of monitoring statewide. WRDA funding requires a 1:1 match with states funds previously mentioned. FY 19 also includes $1.4 million from the dedicated Watercraft Invasive Species Sticker Fund which ISDA utilizes for station improvement projects. ISDA also received from BLM $20,000 to purchase watercraft decontamination units, $57,000 from 2018 USFWS State ANS Plan agreement for updating the regulatory signage at Idaho borders and continues to utilize USFS funding to operate the inspection station at Redfish Lake.

Watercraft Inspection:

As the boating season winds down, the majority of recreational watercraft are being winterized and placed into storage. ISDA has worked cooperatively with local entities throughout Idaho in 2018 to operate watercraft inspection stations statewide. Total inspections performed by Idaho stations exceeded previous years data in terms of total volume (please see attached graph from 10/14/2018) and mussel fouled watercraft interceptions. Thank you to all our station partners for their hard work and dedication to this program.

To date, Idaho stations have intercepted 49 Quagga/Zebra mussel fouled watercraft destined to or through Idaho. All mussels found in 2018 have been non-viable dead mussel shells originating from various mussel infested waterbodies throughout US. ISDA continues to work with regional partners to promote mandatory inspection and decontamination for watercraft leaving those source waters, notification sent to destination states prior to arrival and a coordinated follow-up decontamination at the destination. ISDA staff compile contact information for all mussel fouled watercraft leaving Idaho on a case-by-case basis to be sent to destination states so a follow-up decontamination can be arranged if needed.

15 stations are now closed for the season. ISDA staff are working with local cooperators for station closure, equipment maintenance and storage. Inspection stations that remain open are listed below and scheduled to close October 31 for the 2018 season. Hwy 93- N Cotterel I-84 W Malad I-15 N Duck Valley Hwy 51- N Cedars I-90 W

Inspection Data Update (10/15/2018):

The watercraft inspection webpage has been updated with current numbers and recent fouled boat data. http://invasivespecies.idaho.gov/watercraft-inspection-stations/

Inspection Station Site Improvement Projects:

ISDA completed several site improvement projects this season. Projects include updating shed/shelter units, installing electrical utility services, lighting, surface ground work, footprint expansion, electronic message boards and station signage. These projects will continue through fall/winter 2018 in preparation for the upcoming 2019 season. Many of these site improvement projects involve with working with ITD, BLM, utility companies and local jurisdiction authorities to complete. ISDA appreciates working with you folks to make a more effective and safer work environment for station employees.


ISDA field staff and partners have completed their plankton tow monitoring for Quagga/Zebra mussel veliger analysis goals for the 2018 season. 1,615 samples were collected this field season, about an 80% increase over previous years. The lab is processing through the remaining samples with analysis results expected in the next two weeks. So far, no Q/Z mussels have been detected in Idaho samples. ISDA field crews are shifting efforts to fall drawdown surveys looking for adult mussels, aquatic plants of concern and other invasive species. These efforts will continue until the weather no longer permits.

Rapid Response:

ISDA is reviewing the state rapid response plan in comparison to the updated Columbia River Basin plan and surrounding state plans for any updates or edits needed. ISDA anticipates having the plan ready for review prior to the IISC meeting for comment.


Story maps are an excellent way to showcase program activities, especially when there is a success story to tell. ISDA has several story maps available online for the public to access. Please feel free to check them out and share.

Main mapping page:


Some examples:




Please feel free to contact Lloyd Knight or myself for more information. Thank you for all your efforts to help stop the spread of invasive species.

Nic Zurfluh

+ June 1, 2018

Re: Spring 2018 Meeting Review

The Spring 2018 IISC meeting was held on Wednesday May 23rd at Idaho State Department of Agriculture Headquarters in Boise, Idaho. Thank you to all who were able to attend. Please see attached PDF for program updates as well as the BSU watercraft inspection data analysis report.

Topics discussed:

Approved meeting minutes from fall 2017 meeting.

ISDA Invasive Species Program Updates:

-2018 watercraft inspection station operation and planning

-2018 Noxious Weed program operation and planning 

-Watercraft Inspection Data Analysis- Matthew May, Ph.D., BSU.

-Partner updates

-Other topics and public comment

Watercraft Inspection Data Update:


Total inspections – 16,464

Total Hotwashes – 846

Total weeds on boats – 59

Total fouled boats – 26

Please let Lloyd Knight or myself know if you have any questions. Thank you all for your efforts to help stop invasive species.

Nic Zurfluh - Section Manager

Invasive Species Coordination and Outreach

+ April 11, 2018

Re: The Western Governors Association (WGA) efforts regarding Invasive Mussels.

The Western Governors Association (WGA) have expressed their concern about the threat of invasive quagga and zebra mussels to western water bodies and urged action by Department of the Interior (DOI) agencies in letter sent this week. Details about WGA efforts, including links to the letters can be seen here: http://westgov.org/news/western-governors-encourage-doi-action-to-prevent-spread-of-invasive-zebra.

We have worked closely with WGA as the new administration settled in at DOI. Those efforts were initiated by communication between Governor Otter and Secretary Zinke and has included close coordination with DOI and ISDA staff at the Columbia River Basin Team meeting in Helena in June 2017, a Lake Mead NRA program review at Lake Mead in December 2017, meetings with DOI leadership and congressional offices in Washington DC in March, and numerous conference calls. We appreciate the coordinated efforts we have enjoyed since program inception with WGA, PNWER, the Columbia River Basin Team, and the Western Regional Panel.

Related: http://boisestatepublicradio.org/post/western-governors-call-aggressive-action-against-invasive-mussels#stream/1http://westgov.org/images/editor/Mussels_Senate_EPW_FINAL.pdf

Nic Zurfluh Section Manager- Invasive Species Coordination and Outreach Idaho State Department of Agriculture

+ April 4, 2018

To: Idaho Invasive Species Council and Stakeholders

Re: Idaho Watercraft Inspection Update

Eight watercraft inspection stations are open as of this past weekend with the remaining stations opening in the coming weeks. 1,556 inspection have been performed and 11 fouled watercraft have been intercepted to date. Visit the Invasive Species of Idaho website for the latest updates as stations open: http://invasivespecies.idaho.gov/watercraft-inspection-stations/

One fouled watercraft in particular came through the Marsing inspection station on March 22nd which consisted of a non-motorized touring kayak with mussel shells in cockpit/seat compartment area. Inspectors hotwashed the kayak inside and out followed by using a sponge to properly drain the compartment collecting all material within (sand, debris, mussel shells, etc.). This highlights the need for all watercraft users to look closely in the interior compartment of their boat. Mussels found were extremely small, about rice size. Great work Marsing inspectors!

The updated inspection numbers are below.

Inspection Station Inspections Hotwash Weeds Fouled Albeni Falls
Bruneau 248 0 0 0 Cedars 270 2 1 1 Clark Fork
Cotterel 289 29 1 0 Dubois
Franklin 23 0 0 0 Huetter
Hwy 12 (Kooskia)
Hwy 20
Hwy 51 (Duck Valley)
Hwy 53
Hwy 87
Hwy 93 256 58 1 2 Malad 314 60 1 2 Marsing 113 5 0 2 North Fork
Redfish Lake
Rose Lake 43 0 0 0 Samuels
Roving Crew 1
Roving Crew 2
Roving Crew 3
ISDA 4 Total 1,556 154 4 11

Fouled Boat # Location Found Origin Destination State Date Found 1 Hwy 93 Lake Havasu, AZ Montana 2/20/2018 2 Hwy 93 Lake Pleasant, AZ Idaho 3/1/2018 3 Marsing Imperial Reservoir, AZ Idaho 3/9/2018 4 ISDA Lake Pleasant, AZ Idaho 3/20/2018 5 ISDA Lake Pleasant, AZ Idaho 3/20/2018 6 ISDA Lake Pleasant, AZ Idaho 3/20/2018 7 ISDA Lake Pleasant, AZ Idaho 3/20/2018 8 Marsing Lake Havasu, AZ Washington 3/22/2018 9 Malad Lake Havasu, AZ Montana 3/30/2018 10 Cedars Pepin Lake, MN Washington 3/31/2018 11 Malad Lake Havasu, AZ Idaho 4/3/2018

Please feel free to contact Lloyd Knight or myself for more information. Thank you for all your efforts to help stop spread of invasive species.

Nic Zurfluh

+ March 13, 2018

To: Idaho Invasive Species Council and Stakeholders

Re: Idaho Invasive Species Program Update

Washington DC Meetings ISDA participated in events around National Invasive Species Awareness Week (NISAW) and a meeting of the Invasive Species Advisory Committee (ISAC) in Washington DC on Feb 27-March 1. Plants Division Administrator Lloyd Knight represented the Department, offering comments to ISAC regarding continued cooperation activities and issues between state and federal agencies. In addition, a group of representatives from western state programs made a number of agency and congressional office visits. Highlights include: • ISAC includes members from tribal and local governments, academic institutions, non-governmental organizations, and the private sector. One of the areas in which they were most interested in comments from states included “cooperative federalism” between state and federal agencies. Knight offered comments on improving the exchange of data and communication between agencies. • The group met with Dan Jiron, Acting Deputy Under Secretary for Natural Resources & Environment. Idaho specific topics included engagement with USFS on funding and cooperation that has made the Redfish Lake station a priority, as well as allowing our roving inspection crews to visit a number of USFS sites including the Middle Fork of the Salmon River.
• The group also met with staff from Congressman Mike Simpson’s office to talk specifically about appropriations related to invasive species containment and prevention as Congress looks at the next fiscal year budget.
• A great deal of time was spent with the Department of Interior. These discussions provided an opportunity to review progress on Secretary Zinke’s “Safeguarding the West” Initiative that was released in June 2017, as well as to discuss specifically activities on the Lower Colorado River as a follow-up to the December program assessment at Lake Mead that Idaho participated in. Much progress has been made and a great deal of work remains, but these issues are clearly a priority for the Secretary and his team and we appreciate their time and focus on these issues.
• The Western Governors Association also participated in the meetings with the Department of Interior. WGA has been helpful in the facilitation of the work between the states and the Department, including the extensive meetings that Idaho and other states participated in ahead of the release of the Initiative in June. We look forward to continued work with WGA to bridge the needs of the states with the operations of the Department as we all work to improve containment and prevention activities across the West.

Safeguarding the West from Invasive Species – An Update The U.S. Department of the Interior released a report highlighting the progress made in the fight against invasive zebra and quagga mussels, which can impair the delivery of water and power, diminish boating and fishing, and devastate ecosystem health.

The report comes after Secretary Ryan Zinke announced in June a set of initiatives to protect western ecosystems and hydroelectric facilities from the destructive species through continued collaboration with western governors as well as federal, state, and tribal agencies. “I am pleased to share progress made on honoring those commitments,” said U.S. Secretary of the Interior Ryan Zinke. “There is more work to do, and Interior is committed to continuing our efforts. With the busy boating season approaching, it is imperative that we are vigilant in taking measures to prevent the spread of invasive mussels and other aquatic invasive species.”

In Fiscal Year 2017, Interior spent $8.6 million to address invasive mussels nationwide. This includes an additional $1 million for the Bureau of Reclamation to establish watercraft decontamination stations, provide educational materials, and continue monitoring efforts. Interior is currently working on more than four dozen actions to address invasive mussels including preventing the spread of the species to un-infested waters, such as those in the Columbia River Basin in the Pacific Northwest, and containing and controlling them where they are established, such as in Lake Powell and the Lower Colorado River region. Some highlights since June include: • Convening federal, state, tribal, and nongovernmental groups to identify options to strengthen watercraft inspection and decontamination programs at infested waters, such as at Lake Havasu as well as Lake Mead, where the Bureau of Reclamation committed to spending another $150,000 this year to bolster efforts. • In the Pacific Northwest, the U.S. Geological Survey, Pacific States Marine Fisheries Commission, and Columbia River Basin partners are mobilizing to improve regional coordination of monitoring efforts to ensure that they are strategic and effective. • The U.S. Fish and Wildlife Service, National Marine Fisheries Service, and Pacific States Marine Fisheries Commission are leading planning efforts to expedite Endangered Species Act Section 7 consultations to ensure a quick response if invasive mussels are detected. • The Bureau of Reclamation launched a prize competition seeking innovation solutions to eradicate invasive mussels from large reservoirs, lakes, and rivers in a cost effective and environmentally sound manner. This work builds on efforts and effective state-federal-tribal partnerships and initiatives in process for decades. Interior and WGA staff have communicated regularly on this initiative since its inception in the spring of 2017. "Western Governors remain committed to the fight against invasive species on Western lands, including the threat that invasive mussels pose to Western waterbodies,” said the Western Governors’ Association (WGA). “Addressing a threat of this magnitude requires leadership, innovation, and coordination at all levels of government.” The Department requested $11.9 million in Fiscal Year 2018, including an additional $3.4 million for the Bureau of Reclamation to expand on these and other efforts to prevent, contain, and control invasive mussels. Approximately $3.1 million is in the process of being released under the continuing resolution to support federal, state, and tribal activities such as the purchase and operation of watercraft inspection and decontamination stations in the Lower Colorado River basin, development of facility vulnerability assessments to determine risk for critical infrastructure in the Columbia River Basin, and increasing capacity for the Confederated Salish Kootenai Tribe at Flathead Lake for their Aquatic Invasive Species program.

Idaho Legislature As the Legislature’s 2018 session winds down, the Joint Finance Appropriations Committee (JFAC) set the agency budget last Friday. After a very detailed review of program needs and a substantial increase in funding in the 2017 session, this year’s session focused on providing the Legislature with an update on program activities. Updates were provided to both the House and Senate Agricultural Affairs Committees and those presentations were sent to other legislators upon request. We heard positive comments on our efforts in 2017 and were able to report on further enhancements that will be made in 2018.

In addition to new stations and expanded hours, we have worked to expand the number of agreements we have with local law enforcement agencies to ensure a safe work environment as well as to enhance compliance at our stations. JFAC did provide an enhancement to the budget for the Idaho State Police (ISP) in order to allow them to expand their presence during the nighttime hours at Cotterell, as well as the early morning/late evening hours at Malad, US 93, and Cedars.

The Invasive Species Program is by its very nature a cooperative program. Those cooperators include the local partners that operate inspection stations, law enforcement agencies that enhance safety and compliance, as well as the Legislature that ensures that we have adequate funding for all program activities. Since the beginning of the program, we have benefitted from the appropriations we need to run the program. It is a level of foresight and support that not every state program enjoys.

Watercraft Inspection Seven watercraft inspection stations are open as of this past weekend, 323 inspection have been performed and 3 fouled watercraft have been intercepted to date. Visit the Invasive Species of Idaho website for the latest updates as stations open: http://invasivespecies.idaho.gov/watercraft-inspection-stations/

Station Inspections Fouled Watercraft Bruneau 46
Cedars 10 Cotterell 110 Hwy 93 70 2 Malad 69
Marsing 18 1 Rose Lake 0

Total inspections – 323 Total fouled boats – 3

Fouled Boat # Location Found Origin Destination State Date Found 1 Hwy 93 Lake Havasu, AZ Montana 2/20/2018 2 Hwy 93 Lake Pleasant, AZ Idaho 3/1/2018 3 Marsing Imperial Reservoir, AZ Idaho 3/9/2018

Please feel free to contact Lloyd Knight or myself for more information. Thank you for all your efforts to help stop spread of invasive species.

Nic Zurfluh

+ February 7, 2018

To: Idaho Invasive Species Council and Stakeholders

Re: Idaho Legislature Update

On Tuesday February 6, 2018 ISDA staff provided updates on our Invasive Species and Noxious Weeds programs for both the Idaho State Senate and Idaho House of Representatives Agriculture Affairs Committees. Each committee post presentations with audio soon after the meeting date, if you would like to listen:



The following PDF contains the slides that were presented for both Committees: Invasive Species Legislature Update 2-2-18

In preparation for 2018 season ISDA and local partners will begin training inspection station staff and opening watercraft inspection stations starting next week. We look forward to another successful season of watercraft inspection and boater education in 2018. Visit the Invasive Species of Idaho website for the latest updates as stations open: Watercraft Inspection Stations

Please feel free to contact Lloyd Knight, Jeremey Varley or myself for more information. Thank you for all your efforts to help stop spread of invasive species.

Nic Zurfluh Section Manager- Invasive Species Coordination and Outreach Idaho State Department of Agriculture

+ January 11, 2018

To: Idaho Invasive Species Council and Stakeholders

Re: Lake Mead Meeting

In December, ISDA staff members Lloyd Knight and Nic Zurfluh were invited to attend a meeting at Lake Mead National Recreation Area to assess program activities facilitated by the National Park Service (NPS) and Nevada Department of Wildlife (NDOW) related to aquatic invasive species control. That assessment included a sharing of knowledge and information between the federal agencies – including NPS, US Fish and Wildlife Service, and the Bureau of Reclamation – and the states of Nevada and Idaho. Included in the meeting were US Department of Interior leadership and the Western Governors Association (WGA).

This meeting provided an opportunity for a very frank and open communication between all parties. Idaho and her sister states have been critical of the overall federal effort since quagga/zebra mussel infestations were first identified in the lower Colorado River. These concerns have been communicated from Governor Otter to DOI leadership and Congress, as well as in the arena of regional meetings and collaborations between program staff. These efforts also included coordination with Idaho’s Congressional Delegation, especially Congressman Mike Simpson, to insert specific intent language and appropriations in an effort to target efforts and resources.

December’s meeting was a direct result of Governor Otter’s recent communication with Interior Secretary Zinke and through the Western Governors Association. The new administration provided new opportunities to start these efforts anew, and the Lake Mead meeting was a chance to hit “reset” and talk face-to-face about these important efforts.

The attached assessment document is a first step, and an important one. This issue is clearly a priority for Secretary Zinke and his leadership team, and after meeting with the group at Lake Mead it is clearly a priority for NPS and NDOW. As always, there are challenges to overcome in the way of resources and authorities, but the group showed a commitment to expand and refine their efforts the best they can. We are working on a number of fronts in follow-up to that meeting that should prove beneficial for all parties. We will also utilize these new relationships to achieve improvements at Lake Havasu and Lake Mojave, both of which present significantly more complex challenges than Lake Mead or Lake Powell.

Also included in this update,

The first documented case of Hydrilla in Idaho was discovered 10 years ago in the Bruneau River area. Hydrilla is an Early Detection Rapid Response (EDRR) designated noxious weed species in Idaho. The 2017 hydrilla field season has come to a close and end results show the largest percentage decrease in plant populations since removal efforts began in 2008. This story map was created by the ISDA Noxious Weed team to highlight the management and success of the Hydrilla eradication program over the years.

Below is a link to the 2017 end of year report:

2017 Hydrilla Report

Below is a link to the story map on the Bruneau River:

ArcGIS Hydrilla Story Map

Please feel free to contact Lloyd or myself for more information. Thank you for all your efforts to help stop invasive species.

Nic Zurfluh

Section Manager- Invasive Species Coordination and Outreach

Idaho State Department of Agriculture

+ April 16, 2019

To: Idaho Invasive Species Council and Stakeholders

Re: Save the Date IISC Spring Meeting May 9th, 2019

Idaho Invasive Species Council Meeting Save the Date- May 9th, 2019 @ 9:00 AM MST: The spring 2019 Idaho Invasive Species Council meeting is scheduled for Thursday May 9th at ISDA. Meeting agenda items include an ISDA program update for both invasive species and noxious weed programs as well as a biological control update from Dr. Mark Schwarzlander (University of Idaho) and Joey Milan (Bureau of Land Management). We will also provide time for a round table update for stakeholder activities.

Watercraft Inspection: ISDA has created an Operations Dashboard highlighting a subset of the data collected at the roadside inspections stations throughout the state in 2019. The dashboard is intended to give basic information from the stations individually and collectively throughout the season.

This site is updated every minute which will allow a real-time view of the inspections occurring anytime individuals are interested. At the top right of the page are filters allowing you to single out stations, or by preset date intervals. We see this as a beneficial tool allowing a glimpse of the data throughout the field season instead of waiting for the results at the end of the year.

We hope you enjoy it. http://idaho.maps.arcgis.com/apps/opsdashboard/index.html#/91aa2987ab5542b08523d6a9056697d2


Please feel free to contact Lloyd Knight, Jeremey Varley or myself for more information. Thank you for all your efforts to help stop the spread of invasive species.

Nic Zurfluh Section Manager- Invasive Species Coordination and Outreach Idaho State Department of Agriculture 208.332.8686 office 208.334.2283 fax 208.631.9574 cell nicholas.zurfluh@isda.idaho.gov invasivespecies.idaho.gov